Building and Safety Services
The following is the revised Chapter 17, Section 1701, Special Inspections, as it appears in the 2001 Edition of the California Building Code.
1701.1 General. In addition to the inspections required by Section 108, the owner or the engineer or architect of record acting as the owner's agent shall employ one or more special inspectors who shall provide inspections during construction on the types of work listed under Section 1701.5.
1701.2 Special Inspector. The special inspector shall be a qualified person who shall demonstrate competence, to the satisfaction of the building official, for inspection of the particular type of construction or operation requiring special inspection.
1701.3 Duties and Responsibilities of the Special Inspector. The special inspector shall observe the work assigned for conformance to the approved design drawings and specifications.
The special inspector shall furnish inspection reports to the building official, the engineer or architect of record, and other designated persons. All discrepancies shall be brought to the immediate attention of the contractor for correction, then, if uncorrected, to the proper design authority and to the building official.
The special inspector shall submit a final signed report stating whether the work requiring special inspection was, to the best of the inspector's knowledge, in conformance to the approved plans and specifications and the applicable workmanship provisions of this code.
1701.4 Standards of Quality. The standards listed below labeled a "UBC Standard" are also listed in Chapter 35, Part II, and are part of this code. The other standards listed below are recognized standards. (See Sections 3503 and 3504.)
ASTM C 94, Ready-mixed Concrete
Specification for Structural Joints Using ASTM A 325 or A 490 Bolts-Load and Resistance Factor Design, Research Council of Structural Connections, Section 1701.5, Item 6.
Specification for Structural Joints Using ASTM A 325 or A 490 Bolts-Allowable Stress Design, Research Council of Structural Connections, Section 1701.5, Item 6.
3. Spray-applied Fire-resistive Materials.
UBC Standard 7-6, Thickness and Density Determination for Spray-applied Fire-resistive Materials
1701.5 Types of Work. Except as provided in Section 1701.1, the types of work listed below shall be inspected by a special inspector.
1. Concrete. During the taking of test specimens and placing of reinforced concrete. See Item 12 for shotcrete.
2. Bolts installed in concrete. Prior to and during the placement of concrete around bolts when stress increases permitted by Footnote 5 of Table 19-D or Section 1923 are utilized.
3. Special moment-resisting concrete frame. For moment frames resisting design seismic load in structures within Seismic Zones 3 and 4, the special inspector shall provide reports to the person responsible for the structural design and shall provide continuous inspection of the placement of the reinforcement and concrete.
4. Reinforcing steel and prestressing steel tendons.
5. Structural welding.
5.1 General. During the welding of any member or connection that is designed to resist loads and forces required by this code.
5.2 Special moment-resisting steel frames. During the welding of special moment-resisting steel frames. In addition to Item 5.1 requirements, nondestructive testing as required by Section 1703 of this code.
5.3 Welding of reinforcing steel. During the welding of reinforcing steel.
EXCEPTION: The special inspector need not be continuously present during the welding of ASTM A 706 reinforcing steel not larger than No.5 bars used for embedments, provided the materials, qualifications of welding procedures and welders are verified prior to the start of work: periodic inspections are made of work in progress: and a visual inspection of all welds is made prior to completion or prior to shipment of shop welding.
6. High-strength bolting. The inspection of high-strength A 325 and A 490 bolts shall be in accordance with approved nationally recognized standards and the requirements of this section.
While the work is in progress, the special inspector shall determine that the requirements for bolts, nuts, washers and paint; bolted parts; and installation and tightening in such standards are met. Such inspections may be performed on a periodic basis in accordance with the requirements of Section 1701.6. The special inspector shall observe the calibration procedures when such procedures are required by the plans or specifications and shall monitor the installation of bolts to determine that all plies of connected materials have been drawn together and that the selected procedure is properly used to tighten all bolts.
7. Structural masonry
10. Spray-applied fire-resistive materials. As required by UBC Standard 7-6.
11. Piling, drilled piers and caissons. During driving and testing of piles and construction of cast-in-place drilled piles or caissons. See Items 1 and 4 for concrete and reinforcing steel inspection.
12. Shotcrete. During the taking of test specimens and placing of all shotcrete and as required by Sections 1924.10 and 1924.11
13. Special grading, excavation and filling. During earthwork excavations, grading and filling operations inspection to satisfy requirements of Chapter 18 and Appendix Chapter 33.
14. Smoke-control system.
15. Special cases. Work that, in the opinion of the building official, involves unusual hazards or conditions.
1701.6 Continuous and Periodic Special Inspection.
1701.6.1 Continuous special inspection. Continuous special inspection means that the special inspector is on the site at all times observing the work requiring special inspection.
1701.6.2 Periodic special inspection. Some inspections may be made on a periodic basis and satisfy the requirements of continuous inspection, provided this periodic scheduled inspection is per- formed as outlined in the project plans and specifications and approved by the building official.